US 9,006,718 B2Granted

Organic electroluminescence display panel and manufacturing method

AssigneePanasonic Corporation

InventorsNaoko Mizusaki, Kenichi Nendai

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Abstract

A organic EL display panel and similar are provided so as to constrain a gradual increase in contact resistance between a common electrode and a power supply layer. In a panel including a substrate, a pixel electrode, a power supply layer formed with separation from the pixel electrode, a resin partition layer having an aperture over the power supply layer and over the pixel electrode, an organic light-emitting layer, a functional layer in contact with the organic light-emitting layer in the aperture and electrically connected to the power supply layer, and a common electrode, an inorganic film is disposed between the functional layer and side walls of an opening for the aperture over the power supply layer in the resin partition layer.

Claims14

Dependent claims

An organic electroluminescence display panel having an organic light-emitting layer disposed between a pair of electrodes that includes a pixel electrode and a common electrode, the organic electroluminescence display panel comprising:

a substrate;
the pixel electrode, formed over the substrate;
a power supply layer supplying electric power to the common electrode, formed over the substrate with separation from the pixel electrode;
a resin partition layer partitioning a formation area for the organic light-emitting layer, disposed over the substrate and having an opening over the pixel electrode and an opening over the power supply layer;
the organic light-emitting layer, formed in the opening over the pixel electrode so as to cover a portion of the pixel electrode exposed through the opening over the pixel electrode;
a functional layer in contact with the organic light-emitting layer and electrically connected to a portion of the power supply layer exposed through the opening over the power supply layer, formed so as to cover the resin partition layer;
and
the common electrode, formed over the functional layer,
wherein an inorganic film is disposed between the functional layer and side walls of the opening over the power supply layer.

6 more elements

Dependencies are inferred from the claim text.

Facts

Application: 13/818,403Filed 5 Jul 2012
Priority: JP 2011-1915632 Sep 2011
Published: US 2013/0328024 A112 Dec 2013
Granted: 14 Apr 2015
Term ends: Not estimatedThe source records don’t support an estimate.

Classification6 codes

H05B 33/10
Electroluminescent light sources: apparatus or processes specially adapted to the manufacture of electroluminescent light sources
H10K 30/865
Constructional details: intermediate layers comprising a mixture of materials of the adjoining active layers
H10K 59/122
Active-matrix OLED [AMOLED] displays: pixel-defining structures or layers, e.g. banks
H10K 59/80516
Anodes: combined with auxiliary electrodes, e.g. ITO layer combined with metal lines

Family

US 2013/0328024 A1Pre-grant publication · published 12 Dec 2013
US 9,006,718 B2This patent

From the US filing history. Foreign family members aren’t listed.

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